:Al6X:':A%a5siz. 



f iburir of lljc Igwseum 



or 



COMPARATIVE ZOOLOGY, 



AT DARVAKD COLLEGE, CAMBRIDGE, MASS. 

 jJountieTi On pribatc siibscvfptfon, Cre 1861. 



Deposited by ALEX. AG ASS I Z. 



No, /cT^/. 



